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General: Mojave Kingcup Cactus (Echinocereus mojavensis), also called Mojave Claret Cup, is mound-shaped plant formed of many, densely packed stems to about 1-foot tall and densely covered with gray, twisted and interlocking spines. The spines are round rather than angled spines.
Mojave Kingcup Cactus is a fairly common component of vegetation communities on well-drained gravelly and rocky soils on upper bajadas and slopes into the mountains in the Upper Sonoran (Pinyon-Juniper Woodland), Transition (Yellow Pine Forest), and Canadian (Pine-Fir Forest) life zones.
Around Las Vegas, Kingcup Cactus can be found most easily in the Pinyon-Juniper woodlands on Mt. Charleston and in the Mojave National Preserve.
Family: Cactus (Cactaceae).
Other Names: Claret Cup Cactus, Echinocereus triglochidiatus. |
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Plant Form: Mound-shaped plant formed of many, densely packed stems.
Height: Usually to about 1-foot tall, to 16 inches.
Trunk: None.
Stems: Entire, cylindrical; mound composed of up to about 500 individual stems, each usually less than about 2 inches diameter, bluish green.
Stem Surface: Ribbed, about 10 ribs per stem.
Spines: Gray, round, to about 2-inches long, curved (almost wavy) and twisting, often interlocking with those of neighboring stems to form a dense web of spines covering the mound. Central and radial spines difficult to distinguish. |
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Glochids: Absent.
Flowers: Blooms during spring (early for cactus). Inflorescence: Solitary flowers emerge from near the tip of individual stems. Flowers: funnel-shaped; orange to red, to about 3-1/2-inches diameter.
Fruit: Cylindrical, about 1-inch long, 1/2-inch diameter. Reddish when ripe, spines deciduous.
Seeds:
Habitat: Dry, well-drained gravelly and rocky soils on upper bajadas and moderate slopes into the mountains.
Distribution: Southern California to Colorado, and south through Texas into Mexico.
Elevation: About 5,000 feet to 10,000 feet.
Comments: Baker Kingcup Cactus recently was split from this species. |
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